Safety barring device for doors.



2 SHEETS-SHEET 1.

PATENTED JULY 25, 1905.

G. KUPSGH. SAFETY EARRING DEVICE FOR DOORS.

fly 2. \l\\ APPLICATION FILED 001226, 1904.

wit) an: of 1/ III v mwmmmwam PATBNTED JULY 25, 1905.

G. KUPSGH. SAFETY EARRING DEVICE FOR DOORS.

APPLICATION FILED OUT. 26, 1904.

2 SHEETS-SHEET 2.

02260 rney 3 UNITED STATES PATENT OFFICE.

SAFETY BARRING DEVICE FOR DOORS- Specification of Letters Patent.

Patented July 25, 1905.

Application filed October 26, 1904:. Serial No. 230,09L.

To all whmn it 'n'trty concern:

Be it known that I, GEoRe KUPsoH, a subject of the'German Emperor, and aresident of Berlin, Germany, have invented certain new and usefulImprovements in Safety Barring Devices forDoors and the Like, of whichthe following is a specification.

My invention relates to key retaining and locking devices for swingingdoors.

My improved locking device consists of a bar adapted to be threaded inthe aperture of a key and engaged and locked at its opposite ends inmovable and rigidly-mounted locking-casings.

My invention will be more fully described in connection with thedrawings, and will be more particularly pointed out in the appendedclaims.

In the drawings, Figure 1 represents in side elevation the centralportion of two swinging doors and portions of the casings of thedoorway, illustrating one method of applying my improved locking device.Fig. 2 is a horizontal sectional view on line 2 2 of Fi 1. ha? detachedfrom the door. Fig. 4 is a sectional view on line 4 4 of Fig. 1. Fig. 5is a fragmentary detail view showing portions of the doors and easingthereof and my improved locking-bar shown inserted in one of thelocking-casings. Fig. 6 is a-horizontal sectional view on line 6 6 ofFig. 5.

Like characters of. reference designate similar parts throughout thedifferent figures of the drawings.

My improved locking-bar m is herein shown in connection with a pair ofswinging doors a and I), hung upon the casings or doorframesfand h. Itwill be obvious, however, that the device of my invention may be appliedto a single as well as a double door, and I do not wish to be limited tothe precise application shown. The said doors a and b are provided witha keyoperated lock (not shown in detail) located upon the door a andoperated by a key Z, which projects some dis tance beyond the inner faceof the door. Each of said doors is preferably provided adjacent to andin horizontal alinement with said key with upwardly and downwardlyopening hooks d and c. On the door-frame at the left of the doors, whichin the drawings is indicated byf, is mounted a locking casing g. Saidcasing comprises a closed structure consisting of top, bottom, and sidewalls and may be ornamented and adapted Fig. 3 shows my improvedlockingfor special forms of woodwork. The side wall of said casing g atthe right is provided with a slot q, desirably somewhat enlarged withrespect to and adapted to receive one end of the bar m. Said slot 9 isprovided with a lower elongation 3, adapted to receive a pin or lookingmember n, secured on the bar m. Said pin n is relatively reduced in sizewith respect to the locking-bar, and the slot 8 is preferably ofsuflicient size to receive the bar and pin when the bar is in theposition shown in Fig. 5. ing 9 is secured to the door-frame f by meansof a pair of bolts 2, which project through a vertical slot y, formed insaid casing. Said bolts are desirably provided with a flat bar or plate11, which overhangs the slot and supports the locking-casing closelyadjacent the door-frame. It will be noted by reference to Fi 5 that thebolts .2 are arranged to permit a slight vertical movement of the casingg in either an upward or downward direction, the purpose of which willbe hereinafter more fully disclosed. The opposite end of the bar m isadapted to be locked in a casing 01, rigidly secured to the door-frameh. Said casing 2' is provided with an aperture 00 in its top wall forthe reception of a looking or jaw member 0, having an open jaw 0 formedon the bar m. Said casing 1 is provided with a locking-cam K, Figs. 5and 6, which is actuated by a key K. Said cam K engages the jaw 0 whenthe locking member is inserted in the casingi and serves to hold the barin a locked osition.

I wil now describe the manner in which my improved locking device isoperated. If the locking-bar m is to be used in connection with the keyZ, the latter is turned to lock the doors a and b, and the rod m isinsertedthrough a suitable opening formed in said key. Assuming that thekey and bar m are in a vertical or inclined position, the operator willnext rotate the bar to a generally horizontal position, so that thelatter will register and engage the upwardly and downwardly openinghooks c and (1. When the bar m is in the position as shown in Fig. 5, itwill be obvious that the bar may be freely moved toward thelocking-casing g, inasmuch as the locking member 1 is at this time notin a position to engage the casing d. When the bar m has been moved tothe left, so that the pin 17. has passed through the slot 8, the bar mwill be axially rotated approximately ninety degrees in order to effectinsertion of The. lockingcas' the locking member 0 in the casing t'. Itwill be obvious by reference to Fig. 1 that in order to insert thelocking member 0 it will be necessary to raise the right-hand end to thebar m slightly to bring the locking member 0 into a position to enterthe slot as, which movement is permitted by the upwardly and downwardlyopening hooks d and c and the movably-mounted casing g. When the lockingmember 0 enters the casing 71, the locking member n will be in aposition shown in dotted lines in Fig. 5, and the locking member 0 willoccupy a lower position, as shown in dotted lines. The key K will now beturned to the right in order to engage the jaw 0 by means of the'cam K,whereupon the bar will be firmly secured in place.

A great advantage of my invention resides in the fact that the door isnot only securely barred in addition to being locked, but the key ofsaid lock is effectively held and prevented from being turned eitherfrom the out or in side of the door. This feature is of greatimportance, since in many forms of bars heretofore used it has beenfound possible to pick the lock and by opening the door unseat the barfrom its fastenings. It will be obvious that this could not possiblyoccur by the use of a bar which holds the key in a fixed position.

The device of my invention is very cheaply manufactured and is simple inconstruction and installation and affords the utmost security.

While I have herein shown and described a single embodiment of myinvention, it will be obvious that changes may readily be made thereinwithout departing from the spirit of the invention.

Therefore what I claim, and desire to secure by Letters Patent, is

1. A key retaining and locking device for doors comprising a bar adaptedfor engagement with the key, and separate locking devices securing theends of said bar.

2. A key retaining and locking device for doors comprising a bar adaptedfor engagement with an inserted key, oppositely-opening hooks 011 eithersideof sald key engaging said bar, and separate locking devices forsecuring the opposite ends of said bar.

3. A locking device for doors comprising a locking-bar, a locking devicefor one end of said bar comprising a movably-mounted casing, and alocking device for the remaining end of the bar comprising arigidly-mounted casing.

4. A locking device for doors comprising a locking-bar,oppositelyopening hooks engaging said bar between its ends, a lockingdevice for one end of said bar com rising a movably-mounted casing, anda loo ing device for the remaining end of said bar comprising arigidly-mounted casing.

5. A locking device for doors comprising a locking-bar,oppositelyopening hooks engaging said bar between its ends, a lockingdevice for one end of said bar consisting of a movable casin having aslotted portion for the insertion 0% one end of said bar, a lockingdevice for the opposite end of said bar con1- prising a rigidly-mountedcasing, said bar having oppositely-projecting locking members, and meanswhereby upon the insertion of one end of the bar into said movablecasing the same may be rotated to lock said end and permit insertion ofthe remaining locking member in said stationary casing.

6. A locking device for doors comprising a locking bar, oppositelyopening hooks engaging said bar between its ends, a locking device forone end of said bar consisting of a movable casin having a slottedportion for the insertion 0 one end of said bar, a locking device forthe opposite end of said bar comprising a rigidly-mounted casing, saidbar having oppositely-projecting locking members and means whereby uponthe insertion of one end of thebar into said movable casing the same maybe rotated to lock said end and permit insertion of the locking memberof the remaining end in said stationary casing, said stationary casinghaving key-operating devices for locking the inserted bar in place.

7. A key retaining and locking device for doors provided with anindependent key-operated lock comprising a bar adapted to be insertedthrough the key, a locking device for said bar at one end comprising amovably mounted casing, a locking device for the remaining end of saidbar comprising a rigidlymounted casin and means whereby upon theinsertion 0 one end of the bar in said movably-mounted casing the barmay be rotated to lock said parts and permit the insertion of theremaining end in said stationary casing.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

v GEORG KUPSCH.

Witnesses:

HENRY HASPER, WOLDEMAR HAUPT.

